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Model selection of a switching mechanism for financial time series

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  • Buu‐Chau Truong
  • Cathy W. S. Chen
  • Mike K. P. So

Abstract

The threshold autoregressive model with generalized autoregressive conditionally heteroskedastic (GARCH) specification is a popular nonlinear model that captures the well‐known asymmetric phenomena in financial market data. The switching mechanisms of hysteretic autoregressive GARCH models are different from threshold autoregressive model with GARCH as regime switching may be delayed when the hysteresis variable lies in a hysteresis zone. This paper conducts a Bayesian model comparison among competing models by designing an adaptive Markov chain Monte Carlo sampling scheme. We illustrate the performance of three kinds of criteria by comparing models with fat‐tailed and/or skewed errors: deviance information criteria, Bayesian predictive information, and an asymptotic version of Bayesian predictive information. A simulation study highlights the properties of the three Bayesian criteria and the accuracy as well as their favorable performance as model selection tools. We demonstrate the proposed method in an empirical study of 12 international stock markets, providing evidence to strongly support for both models with skew fat‐tailed innovations. Copyright © 2016 John Wiley & Sons, Ltd.

Suggested Citation

  • Buu‐Chau Truong & Cathy W. S. Chen & Mike K. P. So, 2016. "Model selection of a switching mechanism for financial time series," Applied Stochastic Models in Business and Industry, John Wiley & Sons, vol. 32(6), pages 836-851, November.
    • Handle: RePEc:wly:apsmbi:v:32:y:2016:i:6:p:836-851
    DOI: 10.1002/asmb.2205
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    Cited by:

    1. Cathy W. S. Chen & Hong Than-Thi & Manabu Asai, 2021. "On a Bivariate Hysteretic AR-GARCH Model with Conditional Asymmetry in Correlations," Computational Economics, Springer;Society for Computational Economics, vol. 58(2), pages 413-433, August.

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